(I use a translator)
In fact, I've had this problem for several months now, but I don't remember which version of the launcher it came from. The bottom line is that the "Changelog" tab is empty, only the red inscription "Failed to get update information" is displayed. The "News" tab is also empty, the same red inscription "Failed to receive news" is displayed there. I thought this problem would be solved by itself, and therefore did not write about it earlier. I've tried reinstalling the launcher and it sometimes updates automatically, but that doesn't help.